mirror of
https://gitlab.com/suyu-emu/suyu.git
synced 2024-03-15 23:15:44 +00:00
300 lines
9.9 KiB
C++
300 lines
9.9 KiB
C++
// Copyright 2019 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include <array>
|
|
#include <memory>
|
|
#include <mutex>
|
|
#include <unordered_map>
|
|
#include <unordered_set>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "common/alignment.h"
|
|
#include "common/common_types.h"
|
|
#include "core/core.h"
|
|
#include "video_core/memory_manager.h"
|
|
#include "video_core/rasterizer_cache.h"
|
|
|
|
namespace VideoCore {
|
|
class RasterizerInterface;
|
|
}
|
|
|
|
namespace VideoCommon {
|
|
|
|
template <typename BufferStorageType>
|
|
class CachedBuffer final : public RasterizerCacheObject {
|
|
public:
|
|
explicit CachedBuffer(VAddr cpu_addr, u8* host_ptr)
|
|
: RasterizerCacheObject{host_ptr}, host_ptr{host_ptr}, cpu_addr{cpu_addr} {}
|
|
~CachedBuffer() override = default;
|
|
|
|
VAddr GetCpuAddr() const override {
|
|
return cpu_addr;
|
|
}
|
|
|
|
std::size_t GetSizeInBytes() const override {
|
|
return size;
|
|
}
|
|
|
|
u8* GetWritableHostPtr() const {
|
|
return host_ptr;
|
|
}
|
|
|
|
std::size_t GetSize() const {
|
|
return size;
|
|
}
|
|
|
|
std::size_t GetCapacity() const {
|
|
return capacity;
|
|
}
|
|
|
|
bool IsInternalized() const {
|
|
return is_internal;
|
|
}
|
|
|
|
const BufferStorageType& GetBuffer() const {
|
|
return buffer;
|
|
}
|
|
|
|
void SetSize(std::size_t new_size) {
|
|
size = new_size;
|
|
}
|
|
|
|
void SetInternalState(bool is_internal_) {
|
|
is_internal = is_internal_;
|
|
}
|
|
|
|
BufferStorageType ExchangeBuffer(BufferStorageType buffer_, std::size_t new_capacity) {
|
|
capacity = new_capacity;
|
|
std::swap(buffer, buffer_);
|
|
return buffer_;
|
|
}
|
|
|
|
private:
|
|
u8* host_ptr{};
|
|
VAddr cpu_addr{};
|
|
std::size_t size{};
|
|
std::size_t capacity{};
|
|
bool is_internal{};
|
|
BufferStorageType buffer;
|
|
};
|
|
|
|
template <typename BufferStorageType, typename BufferType, typename StreamBuffer>
|
|
class BufferCache : public RasterizerCache<std::shared_ptr<CachedBuffer<BufferStorageType>>> {
|
|
public:
|
|
using Buffer = std::shared_ptr<CachedBuffer<BufferStorageType>>;
|
|
using BufferInfo = std::pair<const BufferType*, u64>;
|
|
|
|
explicit BufferCache(VideoCore::RasterizerInterface& rasterizer, Core::System& system,
|
|
std::unique_ptr<StreamBuffer> stream_buffer)
|
|
: RasterizerCache<Buffer>{rasterizer}, system{system},
|
|
stream_buffer{std::move(stream_buffer)}, stream_buffer_handle{
|
|
this->stream_buffer->GetHandle()} {}
|
|
~BufferCache() = default;
|
|
|
|
void Unregister(const Buffer& entry) override {
|
|
std::lock_guard lock{RasterizerCache<Buffer>::mutex};
|
|
if (entry->IsInternalized()) {
|
|
internalized_entries.erase(entry->GetCacheAddr());
|
|
}
|
|
ReserveBuffer(entry);
|
|
RasterizerCache<Buffer>::Unregister(entry);
|
|
}
|
|
|
|
void TickFrame() {
|
|
marked_for_destruction_index =
|
|
(marked_for_destruction_index + 1) % marked_for_destruction_ring_buffer.size();
|
|
MarkedForDestruction().clear();
|
|
}
|
|
|
|
BufferInfo UploadMemory(GPUVAddr gpu_addr, std::size_t size, std::size_t alignment = 4,
|
|
bool internalize = false, bool is_written = false) {
|
|
std::lock_guard lock{RasterizerCache<Buffer>::mutex};
|
|
|
|
auto& memory_manager = system.GPU().MemoryManager();
|
|
const auto host_ptr = memory_manager.GetPointer(gpu_addr);
|
|
if (!host_ptr) {
|
|
return {GetEmptyBuffer(size), 0};
|
|
}
|
|
const auto cache_addr = ToCacheAddr(host_ptr);
|
|
|
|
// Cache management is a big overhead, so only cache entries with a given size.
|
|
// TODO: Figure out which size is the best for given games.
|
|
constexpr std::size_t max_stream_size = 0x800;
|
|
if (!internalize && size < max_stream_size &&
|
|
internalized_entries.find(cache_addr) == internalized_entries.end()) {
|
|
return StreamBufferUpload(host_ptr, size, alignment);
|
|
}
|
|
|
|
auto entry = RasterizerCache<Buffer>::TryGet(cache_addr);
|
|
if (!entry) {
|
|
return FixedBufferUpload(gpu_addr, host_ptr, size, internalize, is_written);
|
|
}
|
|
|
|
if (entry->GetSize() < size) {
|
|
IncreaseBufferSize(entry, size);
|
|
}
|
|
if (is_written) {
|
|
entry->MarkAsModified(true, *this);
|
|
}
|
|
return {ToHandle(entry->GetBuffer()), 0};
|
|
}
|
|
|
|
/// Uploads from a host memory. Returns the OpenGL buffer where it's located and its offset.
|
|
BufferInfo UploadHostMemory(const void* raw_pointer, std::size_t size,
|
|
std::size_t alignment = 4) {
|
|
std::lock_guard lock{RasterizerCache<Buffer>::mutex};
|
|
return StreamBufferUpload(raw_pointer, size, alignment);
|
|
}
|
|
|
|
void Map(std::size_t max_size) {
|
|
std::tie(buffer_ptr, buffer_offset_base, invalidated) = stream_buffer->Map(max_size, 4);
|
|
buffer_offset = buffer_offset_base;
|
|
}
|
|
|
|
/// Finishes the upload stream, returns true on bindings invalidation.
|
|
bool Unmap() {
|
|
stream_buffer->Unmap(buffer_offset - buffer_offset_base);
|
|
return std::exchange(invalidated, false);
|
|
}
|
|
|
|
virtual const BufferType* GetEmptyBuffer(std::size_t size) = 0;
|
|
|
|
protected:
|
|
void FlushObjectInner(const Buffer& entry) override {
|
|
DownloadBufferData(entry->GetBuffer(), 0, entry->GetSize(), entry->GetWritableHostPtr());
|
|
}
|
|
|
|
virtual BufferStorageType CreateBuffer(std::size_t size) = 0;
|
|
|
|
virtual const BufferType* ToHandle(const BufferStorageType& storage) = 0;
|
|
|
|
virtual void UploadBufferData(const BufferStorageType& buffer, std::size_t offset,
|
|
std::size_t size, const u8* data) = 0;
|
|
|
|
virtual void DownloadBufferData(const BufferStorageType& buffer, std::size_t offset,
|
|
std::size_t size, u8* data) = 0;
|
|
|
|
virtual void CopyBufferData(const BufferStorageType& src, const BufferStorageType& dst,
|
|
std::size_t src_offset, std::size_t dst_offset,
|
|
std::size_t size) = 0;
|
|
|
|
private:
|
|
BufferInfo StreamBufferUpload(const void* raw_pointer, std::size_t size,
|
|
std::size_t alignment) {
|
|
AlignBuffer(alignment);
|
|
const std::size_t uploaded_offset = buffer_offset;
|
|
std::memcpy(buffer_ptr, raw_pointer, size);
|
|
|
|
buffer_ptr += size;
|
|
buffer_offset += size;
|
|
return {&stream_buffer_handle, uploaded_offset};
|
|
}
|
|
|
|
BufferInfo FixedBufferUpload(GPUVAddr gpu_addr, u8* host_ptr, std::size_t size,
|
|
bool internalize, bool is_written) {
|
|
auto& memory_manager = Core::System::GetInstance().GPU().MemoryManager();
|
|
const auto cpu_addr = memory_manager.GpuToCpuAddress(gpu_addr);
|
|
ASSERT(cpu_addr);
|
|
|
|
auto entry = GetUncachedBuffer(*cpu_addr, host_ptr);
|
|
entry->SetSize(size);
|
|
entry->SetInternalState(internalize);
|
|
RasterizerCache<Buffer>::Register(entry);
|
|
|
|
if (internalize) {
|
|
internalized_entries.emplace(ToCacheAddr(host_ptr));
|
|
}
|
|
if (is_written) {
|
|
entry->MarkAsModified(true, *this);
|
|
}
|
|
|
|
if (entry->GetCapacity() < size) {
|
|
MarkedForDestruction().push_back(entry->ExchangeBuffer(CreateBuffer(size), size));
|
|
}
|
|
|
|
UploadBufferData(entry->GetBuffer(), 0, size, host_ptr);
|
|
return {ToHandle(entry->GetBuffer()), 0};
|
|
}
|
|
|
|
void IncreaseBufferSize(Buffer& entry, std::size_t new_size) {
|
|
const std::size_t old_size = entry->GetSize();
|
|
if (entry->GetCapacity() < new_size) {
|
|
const auto& old_buffer = entry->GetBuffer();
|
|
auto new_buffer = CreateBuffer(new_size);
|
|
|
|
// Copy bits from the old buffer to the new buffer.
|
|
CopyBufferData(old_buffer, new_buffer, 0, 0, old_size);
|
|
MarkedForDestruction().push_back(
|
|
entry->ExchangeBuffer(std::move(new_buffer), new_size));
|
|
|
|
// This buffer could have been used
|
|
invalidated = true;
|
|
}
|
|
// Upload the new bits.
|
|
const std::size_t size_diff = new_size - old_size;
|
|
UploadBufferData(entry->GetBuffer(), old_size, size_diff, entry->GetHostPtr() + old_size);
|
|
|
|
// Update entry's size in the object and in the cache.
|
|
Unregister(entry);
|
|
|
|
entry->SetSize(new_size);
|
|
RasterizerCache<Buffer>::Register(entry);
|
|
}
|
|
|
|
Buffer GetUncachedBuffer(VAddr cpu_addr, u8* host_ptr) {
|
|
if (auto entry = TryGetReservedBuffer(host_ptr)) {
|
|
return entry;
|
|
}
|
|
return std::make_shared<CachedBuffer<BufferStorageType>>(cpu_addr, host_ptr);
|
|
}
|
|
|
|
Buffer TryGetReservedBuffer(u8* host_ptr) {
|
|
const auto it = buffer_reserve.find(ToCacheAddr(host_ptr));
|
|
if (it == buffer_reserve.end()) {
|
|
return {};
|
|
}
|
|
auto& reserve = it->second;
|
|
auto entry = reserve.back();
|
|
reserve.pop_back();
|
|
return entry;
|
|
}
|
|
|
|
void ReserveBuffer(Buffer entry) {
|
|
buffer_reserve[entry->GetCacheAddr()].push_back(std::move(entry));
|
|
}
|
|
|
|
void AlignBuffer(std::size_t alignment) {
|
|
// Align the offset, not the mapped pointer
|
|
const std::size_t offset_aligned = Common::AlignUp(buffer_offset, alignment);
|
|
buffer_ptr += offset_aligned - buffer_offset;
|
|
buffer_offset = offset_aligned;
|
|
}
|
|
|
|
std::vector<BufferStorageType>& MarkedForDestruction() {
|
|
return marked_for_destruction_ring_buffer[marked_for_destruction_index];
|
|
}
|
|
|
|
Core::System& system;
|
|
|
|
std::unique_ptr<StreamBuffer> stream_buffer;
|
|
BufferType stream_buffer_handle{};
|
|
|
|
bool invalidated = false;
|
|
|
|
u8* buffer_ptr = nullptr;
|
|
u64 buffer_offset = 0;
|
|
u64 buffer_offset_base = 0;
|
|
|
|
std::size_t marked_for_destruction_index = 0;
|
|
std::array<std::vector<BufferStorageType>, 4> marked_for_destruction_ring_buffer;
|
|
|
|
std::unordered_set<CacheAddr> internalized_entries;
|
|
std::unordered_map<CacheAddr, std::vector<Buffer>> buffer_reserve;
|
|
};
|
|
|
|
} // namespace VideoCommon
|